Improvement in spring-beds



.L E. WEBSTER. Improvement in Springv Beds.

www mmwew5 mgm@ Y 'I ma im/5M UNITED STATES PATENT FFICE.

ISAAC E. WEBSTER, OF BUFFALO, YORK, ASSIGNOR TO HIMSELF AND JOHN F. FORNES, OF SAME PLACE.

IMPROVEMENT IN SPRING-BEDS.

Specification forming part of Letters Patent No. 125,357, dated April 2, 1872.

Specication describing certain new and useful Improvements in Spring-Beds, invented by ISAAC EDWIN WEBSTER, assignor to himself and J OHN F. FORNES, both of Bui'- g'zilo, in the county of Erie and State of N ew ork.

Nature of the Invention.

The invention consists in making a doublespiral vertical spring of one piece of wire, with a square slot or loop formed in the top for the insertion ofthe wooden slat. It also consists in the general arrangement of the whole by which the bed is made adjustable.

General Descm'pton.

. the upper part bent in a square loop or slot,

as shown at a, (see Figs. 2 and 3,) for the reception of the wooden slat D. The two extreme ends or points ofthe springs are forced into the wooden cross-bar A, and the two lower circles ot' the spiral springs are held together or encompassed by a staple, b, which is also driven into the cross-bar A. (See Fig. 3.) The ends are also confined by sta-ples. This holds the double spring securely in a ver tical position. As many springs may be used as there are slats in the bed. The ordinary slats are employed, and slide loosely in the loops a a., and the cross-bars A A' set loosely on the bed-rail for the purpose of making the bed adjustable.

This is an important feature of my invention, as by this simple construction, by merely sliding the cross bar A (carrying with it the springs) back or forward on the side rail, the elasticity of the slats and springs is placed at just such points of the bed as may be desired for different persons, being adjustable near together or further apart for young or sick persons. The advantage of the double vertical spring and the square slot a is very great, as by these the bed can only be pressed down squarely and will not tip, which is the fault' of most spring-beds.

Being double, the springs always hold the slats even, and, by the employment ot' the square slots, they cannot slip oi or out. The slats, therefore, rest on two centers, and when, by weight, they are pressed down, then the square slot is tightened, holding the slats firmer than ever.

lf the wooden slats sag down with use they can be reversed without trouble, and will be as good as before. If any break they are easily and cheaply replaced. The springs will never break by any ordinary use. There. will be only two of the cross-bars required, each having as many or as few of the springs as may be desired. Iam aware that double springs, which are fastened together at the top, Svc., are not new, and I am acquainted with a bed-bottom having a double longitudinal spring. Such, however, are not the equivalents of my invention.

Claim.

I claim- In a bed-bottom, the double vertical conical spiral springs O O, having a square slot, a, formed in the top, the whole made of a single piece of wire, and in combination with the crossbars A and slot D, arranged substantially as described, and operating for the purpose hereinbefore specified.

In witness whereof I have hereunto signed my naine in presence of two subscribing witnesses..

I. E. WEBSTER.

Witnesses:

J. R. DRAKE, C. N. WooDwARD. 

